Humidifier



May 10, 1927,

- R. CARLSTEDT- HUMIDIFIER Filed July 2, 1924 IIIIIII-lllllIl-llllll 1v! 'ENTOR Patented May 10; 1927,

UNITED "STATES PATENT oFFlCBi RAGNAR CARLSTEDT, OF STOCKHOLM, swnnnn, assrsnon T MIDWEST AIR FILTERS, mconroaa'ran, A CORPORATION or NEW YonK. a

' H MID'IFIER.

Application filed July 2, 1924. Serial No. 723,850.

M COIISI StS in certain constructions and arrangements as fully set forth 1161:8111 and shown in the accompanying drawings. i 5 One object of my invention is to provide a humidifier which will-supply a highly subdivided, -fine mist.

Another object of my invention is to pro vide a humidifier of the rotating type which is-supplied with humidifying liquid in such a way that an evendistributionof the liquid 'on the rotating humidifier is effected.

I Other'objects' and advantagesof the invention will be apparent 'asIthe description companying drawings, in which':-'-

The figure shows one form of humidifier according to my invention,

Various more orless complicated arrange-1 ments have been used for this purpose, but I have found that results can be obtained by i the simple device of my invention which;

drical layer of water. is disposed on the in-",.

side surface due to centrifugal force. On

one end of' thez shaft 10 is the liquid dispausing cone 11 which rotates at high speed .withthe shaft. The inside of thecone; in-

dicated at A is in communication with the I low shaft 10 by means of apertures 12 in a small cup-shaped attaching member 13 which connects hollow shaft 10: and cone 11. Cone 1 1 is rounded at its outer periphery as indicated at 14.

The restriction 16 in the form'of an'annular shoulder on the inside of hollow shaft 10 at the end opposite to cone 11 serves to retain the liquid layer in the hollow shaft.

invention relates to humidifiers and proceeds. taken in connection with, the 210- v a r q I It is to be noted that the liquid is led not simply sprayed from a stationary pipe onto' the cone. 7 The thin layer of liquid entrifugal force until it is so thin that the parcentral longitudinal passageway of the hol-' A' pipe 15 serves to supply liquid to the humidifier. This pipe 15 passes loosely through restriction 16. By making shaft 10 of'larger diameter than is necessary for the conducting of the requisite amount of liquid through the same and so arranging the parts that centrifugal actidn holds the humidifying liquid in a layer on the inside of-shaft 10, which layer is of less depth than the height of the shoulder 16, no stuffing box or other frictional union is nec'essarywhere pipe 15 enters the hollow' shaft and yet the liquid can be led to the exact center of the inside of the cone and evenly distributed onto the cone.

onto the conev in a ring form under the.

'- action of centrifugal force whichis applied to it'before it is led thereto. The liquid'is tering ontothe cone through apertures 12 .is gradually made thinner andthinner asit moves outwardly under the action of centicles of liquid lose their cohesive properties and the water is torn into fine atom like particles which are thrown off the rounded ends 14 ofthe' cones into the atmosphere making aminutely subdivided mist. This is in part'eflected by the rounding of they periphery of the cone at 14 since as the liquid has tendency to adhere to the metahsome of it will travel part way around the curve of the periphery before being thrown off and the liquid is thus subdivided both in outward direction and indirection perpendicular to the plane of the periphery of cone 11, that/is; both radially and axially. Vhile I have described a specific embodiment of the invention, it will be readily seen that various parts may he changed and parts omitted" and others added without departing fluid su ply pipe extending into said hollow she I; through and beyond saidrestrictiou, the other end of the hollow shaft, hav-' ing a perforated cap secured thereto, and a' 5 funnel-shaped spreader secured at its smaller end to said cap, the perforations in the cap being positioned to direct the liquid from the hollow shaft along the surface of the spreader. remote from the motor, said spreader having a, reversely curved peripb w eral rim. i i

In testimony whereof Ihereunto'afix my signature. v

BAGNAR GARLSTEDT, 

